Malicious PDF — malware analysis report

Static analysis result for SHA-256 fee23e161033185b…

MALICIOUS

PDF

71.0 KB Created: 2020-12-22 00:21:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 2b9a86579aab025c7125796842fd0aac SHA-1: 959fd54362527c7bc815688c9bf11d16a052cf02 SHA-256: fee23e161033185b2eeae4e286fd944beb558a8faf1e4ee14196c772788b00d1
104 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains heuristics indicating it is a phishing lure, specifically mentioning invoice or payment language. It also contains an embedded URI pointing to 'traffking.ru', which is likely a malicious domain used to host a phishing page or download further malware. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://traffking.ru/strik?utm_term=atmos+energy+gas+lubbock PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4379049/normal_5fc79034659c2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392660/normal_5f950a8609eab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460071/normal_5fa9002a98a3c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488317/normal_5fbe81ee73448.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369646/normal_5f8f2b8656218.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370286/normal_5f9c4fd1ed986.pdfIn PDF document text
    • https://tixanesel.weebly.com/uploads/1/3/4/2/134234664/pomab_robikugu_rekekadobaguxa_rusaxavedinibij.pdfIn PDF document text
    • https://lizosodomig.weebly.com/uploads/1/3/4/3/134327767/jaxikopovuvibep.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf68282dd96f5918e73c3e/1606379561403/shimano_105_pedal_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/fonazuzixagizir/newoki.pdfIn PDF document text
    • https://s3.amazonaws.com/vetamedisoz/vevizepotas.pdfIn PDF document text
    • https://s3.amazonaws.com/xarojapi/p90x_fitness_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/vitelitubovuluj/the_long_hot_summer_1985_cast.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fe012c91091525336566e3a/t/5fe04c447f4e6a3367504663/1608535108604/capitalization_worksheets_grade_3.pdfIn PDF document text
    • https://s3.amazonaws.com/baxunaf/auditoria_administrativa_antecedentes.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c82b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC82B 5248 bytes
SHA-256: 4609d0c4468f090b674edd97cff3bb625e16a54d557290344752a73d7f073672
font_01_sfnt_off0000d9f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9F9 11352 bytes
SHA-256: 26ed25cbc5f97eee0ec6f63a40f1391a26585cdbb94c80027689c0df315c944b
font_02_sfnt_off000100d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100D8 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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